[llvm] [AMDGPU] Post-RA AGPR copy elimination pass (PR #153901)

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``````````bash
git-clang-format --diff HEAD~1 HEAD --extensions cpp,h -- llvm/lib/Target/AMDGPU/AMDGPUEliminateAGPRToVGPRCopy.cpp llvm/lib/Target/AMDGPU/AMDGPU.h llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUEliminateAGPRToVGPRCopy.cpp b/llvm/lib/Target/AMDGPU/AMDGPUEliminateAGPRToVGPRCopy.cpp
index 66e00e131..5dc1430ea 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUEliminateAGPRToVGPRCopy.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUEliminateAGPRToVGPRCopy.cpp
@@ -129,10 +129,11 @@ bool AMDGPUEliminateAGPRToVGPRCopyImpl::run(MachineFunction &MF) const {
               if (SIInstrInfo::isMFMA(UseMI)) {
                 if (&MO != TII.getNamedOperand(UseMI, AMDGPU::OpName::src0) &&
                     &MO != TII.getNamedOperand(UseMI, AMDGPU::OpName::src1)) {
-                  LLVM_DEBUG(dbgs() << "  Incompatible MFMA operand: " << UseMI);
+                  LLVM_DEBUG(dbgs()
+                             << "  Incompatible MFMA operand: " << UseMI);
                   return false;
                 }
-              } else if (!UseMI.isFullCopy()){
+              } else if (!UseMI.isFullCopy()) {
                 LLVM_DEBUG(dbgs() << "  Incompatible user: " << UseMI);
                 return false;
               }

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https://github.com/llvm/llvm-project/pull/153901